BÜHLMANN ZHL-16C GF, User Manual

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minimum operating depth "MIN" (calculated for PPO2 = 0.18Bar) is
exceeded, the gas name is displayed in red.
MOD – maximum depth of a dive with selected gas, calculated for 1.6Bar Oxygen
partial pressure, in meters [m] or ft [ft]. When settings in the gas mix
table are not configured, the gas name is replaced by:
.
TTS – total Time to Surface - time to make safe ascent from current depth and
current tissue saturation
NDL – the time (in minutes) that you can stay on the selected gas mix at the
current depth without the need for a decompression procedure. It is
counted down from 99 to 0. In the case of doing a decompression dive,
this section shows the current
required decompression stop
Stop – information about the next required decompression stop: time of the
stop (in minutes) and depth (in meters)
When the required depth of the stop is reached, the stop time is counted down from
given value to zero. You can leave the stop only after its total time has cleared and the
details of the next shallower stop are displayed.
Omitting the current stop, or shortening the stop time, is indicated by red colour in the
field of the stop data:
In this case, return to the depth indicated by the controller and complete the
decompression stop. Current indications may change as the decompression algorithm
continues calculations also when the stop is omitted, taking into account the current
values of tissue saturation, calculated in real time.
Failure to reach the stop at the required time and staying at a depth greater than that
determined by the decompression algorithm results in further saturation of the harder
tissues above the value calculated during the planning phase of the decompression stop.
In this situation, with real-time tissue calculations, the algorithm will change the data of
subsequent stops, calculating them to the current continuous saturation level.